Jobs at Djinni

Come Back Agency helps US software and technology companies run their hiring process. We work with delivery and leadership teams to define roles, screen candidates, and manage interviews. Successful candidates are hired directly by the company and become part of its team.

This position is with a US-based software company providing custom development and AI implementation for North American clients. The team builds and maintains production software, including AI-enabled systems, and works in long-term client engagements. Team members operate as part of an internal, distributed team and collaborate directly with client stakeholders.

About the Role

As we scale our operations to meet enterprise demands, we are looking for a driven DevSecOps Engineer who can help harden our cloud infrastructure, elevate our security posture, and drive compliance readiness. In this role, you’ll play a pivotal part in helping us pass enterprise vendor reviews and achieve key certifications like SOC 2 and ISO 27001. You will work closely with cross-functional engineering and leadership teams spanning infrastructure, security, and compliance.

What You Will Do

• Infrastructure & CI/CD: Build, scale, and maintain secure cloud infrastructure and automated CI/CD pipelines.
• Access & Security: Implement robust access controls, least privilege principles, secrets management, and security hardening across environments.
• Observability & Auditing: Standardize logging, monitoring, alerting, and comprehensive audit trails.
• Secure SDLC: Drive secure software development lifecycle practices, including code scanning, dependency scanning, and change control.
• Incident Response: Establish baseline incident response procedures, including runbooks, on-call expectations, and structured post-incident reviews.
• Compliance Readiness: Take ownership of technical controls and evidence gathering for SOC 2 and/or ISO 27001 frameworks.
• Vulnerability Management: Maintain proactive vulnerability patching routines for infrastructure and dependencies.
• Reliability & Recovery: Enhance backup, disaster recovery, and business continuity practices.
• Client Security Support: Respond to client security questionnaires and support audits with clear technical answers and evidence.

Requirements

• Experience: 2+ years of hands-on DevOps experience managing cloud infrastructure and deployment pipelines.
• Cloud & IaC: Strong practical experience with AWS (IAM, networking, compute, logging) and Terraform (Infrastructure as Code).
• Containers & GitOps: Hands-on experience with Kubernetes (Amazon EKS preferred), Helm, and GitOps workflows (ArgoCD or similar).
• CI/CD: Experience building and configuring CI/CD pipelines from scratch (e.g., Bitbucket Pipelines, GitLab CI, GitHub Actions).
• Security & Compliance: Familiarity with modern security tooling (SAST, DAST, dependency scanning, secret scanning), combined with hands-on experience in SOC 2 and/or ISO 27001 compliance preparation (controls implementation, gap analysis, and evidence collection using Security Hub or similar cloud security tooling).
• Documentation & Process: Strong ability to document systems clearly and collaborate effectively with auditors or compliance platforms.
• Communication: B2+ English level (upper-intermediate or higher) for seamless daily collaboration with US-based client stakeholders.

Nice to Have

• AWS certifications (e.g., DevOps Engineer - Professional or SysOps Administrator Associate).
• Experience with compliance automation tools such as Vanta, Drata, or Secureframe.
• Background working in regulated industries (e.g., HIPAA).

What We Offer

• Working hours aligned with US time zones, typically 16:00–23:59 Kyiv time.
• Company-sponsored English lessons to support clear and confident communication.
• Paid vacation and sick days.
• Fully remote work.
• Opportunities for professional growth within the team.
• Structured, personalized onboarding to help you ramp up effectively.

Apply with your resume and a short note outlining your relevant experience. You can also submit it through our website at comeback.ua. Selected candidates will be contacted by Come Back Agency.

NexaPay (nexapay.one) is an Estonian fintech company in the payments space. Our payment gateway allows merchants to accept Visa, Mastercard, Apple Pay and Google Pay, and receive settlement in USDC. We work with B2B clients worldwide.

We're scaling and looking for a developer who can build high-quality web interfaces fast, making active use of modern AI development tools. We need someone who can take an idea to a working, well-designed product in a short time — and who genuinely understands what they're building.

What you'll do
— Build and develop the company's websites and landing pages, from mockup to production
— Create internal interfaces and panels for the team
— Maintain, improve and update existing pages and functionality
— Test ideas quickly: build prototypes and take the successful ones to completion
— Own the quality: responsiveness, load speed, correct behaviour across all devices

What matters to us
— A strong sense of modern UI/UX: you build interfaces that look polished and expensive, not templated. This is a key requirement
— Portfolio required: live links to websites or interfaces you've built
— Confident use of AI development tools (Claude Code or similar) — and a clear sense of where they can be trusted and where your own review is needed
— Real understanding of code, not just generation: project structure, working with repositories and Git, deployment, reading and editing existing code, a working grasp of backend and APIs
— Experience with a modern frontend stack (React/Next.js or similar)
— English at B2+: documentation, tools and part of our communication are in English
— Independence: the ability to take a task, see it through, and propose a better solution
— Attention to detail: this is fintech, where accuracy and reliability matter more than speed

Nice to have
— Experience in fintech, SaaS or with payment integrations
— Basic understanding of web application security
— Experience working with analytics and SEO requirements at the markup level

Hiring process
Portfolio review → interview → a test task

Schedule
Full-time, 9:00–19:00 Estonian time (EET), fully remote.

What we offer
— Competitive compensation, paid in crypto
— Fully remote work
— Freedom in technical decisions and a fast cycle: your changes reach real clients immediately
— An international fintech product that's actively scaling
— Room to grow with the company

Send your CV along with links to 2–3 things you've built — that matters more to us than formal experience.

TRIONIKA is a company with core expertise in attracting and monetising internet traffic in EdTech and FinTech.

We are looking for an experienced SEO Unit Lead to build and lead an autonomous mini-unit consisting of a Middle and Junior SEO Specialist.

This is a hands-on role for someone who knows how to launch and rank iGaming affiliate websites (Tier-1/Tier-2 markets), test brand and cross-brand strategies, manage budgets, and turn organic traffic into measurable net profit.

What You Will Do

• Develop and execute SEO strategies for iGaming affiliate websites.
• Select promising GEOs, brands, domains, and search opportunities.
• Build semantic cores and work with brand and cross-brand keywords.
• Launch and scale networks of affiliate websites.
• Work hands-on with domains, indexing, redirects, migrations, and Technical SEO.
• Create and test SEO hypotheses and scale successful approaches.
• Analyse rankings, traffic, conversions, registrations, FTDs, and financial results.
• Estimate and manage the budget required to enter selected GEOs.
• Set tasks for Middle and Junior SEO Specialists and take ownership of the unit’s results.

What We’re Looking For

• 3+ years of hands-on SEO experience.
• Proven experience specifically in iGaming affiliate SEO.
• Experience with brand and cross-brand SEO strategies.
• Experience working with European, English-speaking markets.
• Strong understanding of semantic research, SERP analysis, domains, indexing, redirects, migrations, and Technical SEO.
• Ability to assess competition, estimate budgets, and understand the commercial potential of a GEO.
• High autonomy, ownership, and a results-driven mindset.

What We Offer

• Fixed compensation + bonus system.
• The possibility of additional individual rewards for exceptional performance.
• Remote workload.
• Flexible working hours.
• Ownership of your own SEO unit.
• Freedom to propose GEOs, brands, domains, budgets, and hypotheses.
• Proprietary tools for automated website launches, redirects, indexing, GSC data, and link building.
• Transparent communication and a supportive environment

If you know how to build profitable iGaming affiliate projects and want the autonomy, technology, and team to scale your ideas, we would be happy to speak with you!

The Mission

Wallee Group is a leader in advanced payment solutions, dedicated to providing robust, scalable, and secure systems across multiple domains. We enhance customer experiences through innovative payment and finance technology that empowers businesses to grow efficiently. With operations spanning several countries, we thrive on collaboration and agility, utilizing the Scrum framework to drive our international teams. At Wallee, we stay at the forefront of market trends, continuously innovating to deliver premier services to our global customers.

The Role

QA Engineer to own test strategy and automation for a React-based web front-end. 

We're looking for a strong software engineer who has chosen quality engineering as a deliberate specialization — someone who finds testing, tooling, and preventing bugs at scale genuinely interesting. The role also involves occasional manual testing of a cross-platform mobile SDK (Android & iOS), with mobile test automation as a possible future direction.

Core Responsibilities

• Design, write, and maintain automated test suites for the React front-end (unit, integration, and end-to-end tests) — treated as production code, not an afterthought
• Read and understand React component code well enough to reason about edge cases, state transitions, and failure modes, not just click through UI flows
• Build and maintain CI/CD test pipelines and test infrastructure — this is engineering work, not configuration
• Define test strategy and coverage standards for the team, and advocate for testability in code review and design discussions
• Investigate, document, and file clear, reproducible bug reports; go deep enough to identify root cause, not just symptoms
• Contribute to test plans and acceptance criteria during feature planning — as a peer in design discussions, not downstream of them
• Occasionally perform manual testing of the mobile SDK (Android & iOS)

Requirements

• 3+ years as a QA Engineer or SDET, with hands-on test automation experience
• Strong software engineering fundamentals: able to read, write, and debug real code, not just scripts
• Ability to read and understand React code — components, hooks, state/props flow — well enough to reason about what needs testing and why
• Solid JavaScript/TypeScript skills
• Proficiency with a modern JS/TS test automation framework (e.g., Playwright, Cypress, Jest, React Testing Library)
• Experience with CI/CD tools (e.g., GitHub Actions, CircleCI, Jenkins) and building test infrastructure, not just using it
• Able to clearly explain why something is a bug, its impact, and root cause — not just that it happened
• Experience manually testing mobile apps on real devices/simulators (iOS and/or Android)
• Experience testing native or cross-platform SDKs
• Familiarity with Android (Kotlin/Java) and/or iOS (Swift) enough to read stack traces or sample integration code
• Experience setting up mobile test automation (e.g., Appium, XCUITest, Espresso)
• API/backend testing experience (e.g., Postman, REST-assured)
• Performance or accessibility testing experience
• A blog post, talk, OSS contribution, or side project related to testing/QA
   

The Mission

Wallee Group is a leader in advanced payment solutions, dedicated to providing robust, scalable, and secure systems across multiple domains. We enhance customer experiences through innovative payment and finance technology that empowers businesses to grow efficiently. With operations spanning several countries, we thrive on collaboration and agility, utilizing the Scrum framework to drive our international teams. At Wallee, we stay at the forefront of market trends, continuously innovating to deliver premier services to our global customers.

The Role

To achieve our mission of providing the market's best payment experience, Wallee is seeking experienced and versatile java software engineers for our Vilnius office. As disruptors in the payment space, we build industry-leading systems that demand the highest standards of security and reliability. We are constantly pushing our solutions into new territories, and we are looking for engineers who thrive in a fast-paced, agile environment to help us redefine the future of finance.

Tasks

Your Impact

• Architect Scalability: Design and develop highly resilient back-end systems using Java, ensuring our infrastructure handles global scale with ease.
• Feature Innovation: Own the end-to-end lifecycle of new features, from initial implementation to refined bug fixing and performance tuning.
• Collaborative Engineering: Work closely with product managers, UX designers, and QA to translate complex business needs into elegant technical solutions.
• Code Excellence: Drive quality through automated testing, rigorous code reviews, and the creation of clear, maintainable technical documentation.
• Stay Ahead: Continuously research and evaluate emerging technologies and methodologies to keep Wallee at the cutting edge of the fintech industry.

Requirements

What You Bring to the Table

• Technical Depth: Advanced proficiency in Java and core frameworks such as Spring, Spring Boot, and Hibernate.
• Systems Thinking: Proven experience building distributed systems and scalable, high-availability solutions.
• Data Mastery: Strong proficiency in SQL and experience managing complex data structures.
• Modern DevOps: Hands-on experience with CI/CD pipelines (Jenkins/GitLab CI) and containerization (Docker, AWS ECS).
• Agile Mindset: A degree in Computer Science (or equivalent experience) and a track record of thriving in fast-paced, Agile environments.

• Bonus Points: Experience with JavaScript, Apache Camel, or BPM engines.

   

  Benefits:

• You are part of an agile, young international team and shape our products sustainably with your ideas.
• You will play a decisive role in designing products in an omni channel payment start-up and work with leading companies in the financial industry on international projects.
• We offer flexible structures and flat hierarchies.
• Cooperation with motivated colleagues and numerous personal development opportunities.

Sigma Software delivers high-quality software development, design, testing, and support services for customers worldwide. We create scalable digital solutions across industries including banking, healthcare, telecommunications, automotive, gaming, real estate, aviation, and more. Our teams combine strong engineering expertise with a collaborative culture focused on delivering measurable business value.

Project Overview

We are looking for a Senior Business Analyst to join a project focused on building a Financial Management System with a strong emphasis on AI-powered process optimization. In this role, you will work closely with business and technical stakeholders to improve financial and operational workflows, transform business needs into clear requirements, and contribute to the delivery of scalable, efficient solutions.

You will become part of a cross-functional environment where AI tools are actively integrated into business analysis and product delivery processes.

Job Description

• Collaborate with stakeholders to gather, analyze, refine, and prioritize business requirements aligned with strategic goals
• Work closely with Product Owners, developers, QA engineers, and designers to ensure accurate implementation of requirements
• Analyze existing business processes, systems, and workflows to identify optimization opportunities and propose scalable solutions
• Create and maintain high-quality documentation including user stories, acceptance criteria, process flows, functional specifications, and user guides
• Decompose high-level business needs into detailed and actionable requirements
• Ensure requirements traceability throughout the delivery lifecycle
• Support backlog refinement, prioritization, and estimation preparation activities
• Facilitate effective communication between business and technical stakeholders
• Conduct demos and presentations to showcase delivered functionality and maintain stakeholder engagement
• Prepare user documentation and support solution adoption
• Contribute to continuous improvement of business analysis practices and the effective use of AI-powered tools in daily workflows

Qualifications

• Strong commercial experience as a Business Analyst in Agile/Scrum environments
• Expertise in requirements gathering, user story creation, decomposition, and backlog structuring
• Understanding of APIs and system integrations
• SQL skills for data extraction and validation
• Experience working with wireframing and prototyping tools
• Strong analytical, problem-solving, and stakeholder management skills
• Practical experience using AI-powered tools for documentation, analysis, process optimization, or data interpretation
• Strong AI prompting skills and ability to integrate AI into everyday work processes
• Excellent verbal and written English communication skills
• Ownership mindset with a proactive and delivery-oriented approach

Nice to Have

• Experience with financial management or accounting systems
• Understanding of financial accounting processes
• Experience with advanced UX or prototyping tools
• Experience integrating AI tools into product or business analysis workflows

Core skill: Solidity and smart contracts development — this is the primary focus of the role and the key selection criterion.

• At least 4 years of commercial development experience
• Deep knowledge of Go and Solidity
• Hands-on experience with blockchain platforms (Ethereum, Solana, Tron, etc.), DeFi and dApp architectures
• Candidates must be able to discuss real projects, system architectures and their own experience in depth during the technical interview

Position Name: Research & Development Engineer (Blockchain / Smart Contracts)
Level: Senior
Headcount: 3 (client stated 2–3 engineers)

Hard skills requirements:

• At least 4 years of experience as a developer
• Solidity and smart contracts development - core skill, primary focus of the role
• Deep knowledge of Go
• Expertise in Web3
• Experience working with blockchain platforms (Ethereum, Solana, Tron, etc.)
• Experience with cryptographic protocols and smart contracts
• Experience with DeFi
• Knowledge of decentralized application (dApps) architectures
• Understanding the specifics of cryptocurrency transactions and smart contracts
• Experience with version control systems (Git)

Nice to Have:

• Rust, JavaScript, Node.js, Python
• Experience with financial operations and high-load systems
• Knowledge of containerization and DevOps infrastructure (Docker, Kubernetes)

Soft skills requirements:

• A passion for problem-solving and finding innovative solutions
• Strong communication — able to discuss real projects, architectures and past experience in technical depth
• Research mindset — comfortable with R&D work on new technologies
• Proactivity and ownership

Responsibilities:

• Develop and implement innovative solutions for the company's products in the blockchain and crypto-processing sector
• Write clean, high-quality, maintainable code
• Integrate new functionalities into existing solutions and system architectures
• Integrate blockchain platforms with the company's existing systems
• Conduct code reviews and ensure code security
• Participate in architectural discussions and develop scalable system architectures
• Work with APIs to interact with crypto-payment gateways and external services
• Analyze system performance, identify bottlenecks, and optimize the system
• Participate in the development of new products and services based on blockchain technologies, including MPC and distributed signing

English: Upper-Intermediate (client's own posting states B1-B2)
Office/Remote: Remote. Full-time preferred through EOY 2026 (part-time 15–20 hrs/week possible); full-time required from 2027
Time zone: EST overlap — team is US-based in Tampa, Florida

We are looking for a Corporate Legal & VAT Specialist to join our PSP Department and independently own the corporate and legal documentation function within our international business structure.
 

This role is highly autonomous and involves direct cooperation with Compliance, Finance, auditors, accountants, tax advisers and external legal / corporate service providers.
 

You will work hands-on with Cyprus corporate structures, corporate documentation, contracts, audit support and Cyprus VAT-related matters, as well as cross-border counterparties and international business structures.
 

What you’ll do:

• preparing a complete legal documentation package for each company’s annual audit;
• maintaining and updating corporate documentation, including constitutional documents, certificates, registers, resolutions, powers of attorney, and information on directors, shareholders, and UBOs;
• Ppoviding comprehensive legal support to companies across multiple jurisdictions, including incorporation and corporate administration through external service providers, as well as drafting and reviewing agreements, invoices, service acceptance certificates, and supporting materials required for the proper documentation of business transactions;
• preparing legal explanations in response to requests from auditors, accountants, and tax advisers;
• establishing a legally and documentarily consistent framework for relationships with existing counterparties, taking into account the actual partnership model, financial flows, and Cyprus VAT requirements, including the application of the reverse charge mechanism.
   

What we’re looking for:

• 3+ years of experience in corporate law, corporate administration, legal operations or a similar role;
• hands-on experience with Cyprus companies;
• pactical knowledge of Cyprus corporate law;
• experience supporting annual audits and audit documentation;
• practical knowledge of Cyprus VAT, VIES and reverse charge;
• experience working with corporate registers, resolutions, powers of attorney, UBO/shareholder documentation and other corporate records;
• experience preparing and reviewing commercial agreements and supporting documents;
• strong written English;
• high level of ownership, attention to detail and ability to work independently;
• ability to understand the actual business relationship behind the documents and build the appropriate legal and documentary framework around it;
• ability to communicate effectively with Finance, Compliance, auditors, accountants, tax advisers and external corporate service providers.
   

Will be a plus:

• experience working with international groups and cross-border business structures;
• experience in fintech, PSP, EMI, VASP or other regulated / financial services businesses;
• experience working with international corporate service providers;
• experience handling multiple Cyprus entities simultaneously;
• understanding of international corporate and compliance processes.
   

What makes this role interesting:

• fully remote work;
• high level of autonomy — you will own your functional area rather than work under constant supervision;
• direct communication with Compliance, Finance, auditors and external advisers;
• hands-on work with real Cyprus corporate structures and international business operations;
• ppportunity to work closely with an international PSP business and gain deeper exposure to corporate, legal and compliance processes.

We are a senior engineering team hiring a backend engineer for a long-term role inside a client's product team. The client is a product company with a large user base. We share its name only with engineers who pass our technical call.

Engineers there shape what gets built, not only how, and work directly with product people.

What matters most to us
• You have built a product that people use every day, and you can point to the parts you owned
• You think about the person using the product. You question a feature when it does not serve them and suggest a better one
• Experience with creative, media or design products, or with shipping AI features to users, is a strong plus

What you will do
• Build and scale backend services in Go
• Run background jobs reliably, with queues, retries and idempotent steps
• Turn new capabilities into features people actually use
• Work with a cloud stack, message queues and APIs

You should have
• 3+ years of Go in production and 5+ years of backend work overall. If you come from a strong product team and work in another language, apply anyway and tell us how fast you would pick up Go
• Experience owning parts of a production system end to end
• Fluent English for daily work with the client team

The role is full time, 40 hours a week, long term, with a working day that overlaps European business hours. Individual engineers only, no agencies.

How we hire: a call with our CTO about your product work and your code, then a call with the client's team. Both are live, with screen share and without AI assistants.

To apply, open your application with a link to a product you helped build and one sentence on what you owned in it. Applications without it will not be read.

Cloudfresh powers growth for 2,500+ clients in 70+ markets across Cloud, Cybersecurity, CRM, Collaboration, DevSecOps, and Data & AI. We partner with Google Cloud, Chrome Enterprise, Microsoft, HubSpot, Zendesk, Asana, Miro, GitLab, Okta, JumpCloud, Cloudflare and Wiz.

We’re looking for a User Acquisition Manager to own how new customers find Cloudfresh. Not one ad account. The whole engine. Running campaigns is part of it. The bigger job is deciding where the next qualified buyer comes from across channels, vendors and markets, and proving it in pipeline.

What You’ll Do

• Own paid acquisition end to end. Google Ads, LinkedIn, Meta and whatever channel earns its budget next.
• Reallocate budget every month across vendors, regions and channels based on CAC and pipeline. Cut what doesn’t pay back.
• Build and test landing pages, offers and retargeting flows. Grow conversion rates quarter over quarter.
• Run weekly tests on audiences, creatives, bidding and messaging. Keep a shared log of what worked.
• Set up tracking from ad click to closed deal in HubSpot. Report pipeline and revenue by campaign, not just leads.
• Drive registrations and pipeline for events, from webinars to our own events. Bring in real attendees who convert into deals, not just sign-ups.
• Use AI tools and agents to automate reporting, QA, competitor monitoring and campaign analysis.

• Agree on ICP, lead quality criteria and SLAs with marketing and sales teams. Review lead quality together every month.

   

What You Bring

• 3+ years in paid acquisition or growth, with B2B SaaS or tech experience
• Hands-on mastery of Google Ads and LinkedIn Ads. You’ve managed real budgets and can show results
• You think in pipeline and CAC, not CTR
• Strong analytics: GA4, Looker Studio or similar, plus AI tools to analyze data, spot patterns and build reports faster
• Experience with HubSpot or another CRM and marketing automation
• You’ve built and tested landing pages, not just briefed them
• You already use AI tools in your daily work and want to push further

• English at B2 or higher

   

Nice to have:

• Experience marketing cloud, security or IT products
• Multi-market campaigns across Europe, the Middle East or Central Asia
• Partner or channel marketing experience
• ABM tools and intent data

• Basic SQL or scripting for ads automation

   

Our Values

1. Customer First. Your success is our purpose.
2. Own the Outcome. We see it through.
3. Direct & Human. Honest, open and caring.
4. Raise the Bar. We never settle for “good enough”.

5. Generate the Real✨ Our DNA.

    

What We Offer

• Build your cloud marketing expertise with Google Cloud, Chrome Enterprise, Microsoft, HubSpot, Zendesk, Asana, Miro, GitLab, Okta, JumpCloud, Cloudflare and Wiz.
• Lead meaningful campaigns across EMEA, making an impact in diverse and dynamic markets.
• Bring your ideas to life in a culture that values creativity and is open to new approaches.
• Enjoy a competitive salary and a transparent bonus system tied to your results.
• Work flexibly remote or join us for a coffee in Kyiv or Prague offices.
• 24 vacation days, bank holidays, and 14 days sick leave.
• Medical insurance for team members in Ukraine.

When applying to this position, you consent to the processing of your personal data by CLOUDFRESH for the purposes necessary to conduct the recruitment process, in accordance with Regulation (EU) 2016/679 of the European Parliament and of the Council of April 27, 2016 (GDPR).

Additionally, you agree that CLOUDFRESH may process your personal data for future recruitment processes. You can withdraw this consent at any time.

Sii Ukraine is a subsidiary of Sii Poland — the leader in IT, engineering, and consultancy services with over 7500 IT experts in Poland and more than 250 prestigious customers.

We are looking for a QA Automation Engineer to join a large-scale online betting and gaming platform supporting internationally recognized brands.

The project focuses on delivering reliable, high-quality web applications and seamless end-to-end customer journeys in a highly transactional environment.

You will work closely with QA Engineers, Developers, Product Owners and other stakeholders throughout the Software Development Lifecycle, with a strong focus on test automation, regression coverage and continuous delivery.

Responsibilities:

• Develop and maintain automated end-to-end tests using Playwright and JavaScript\TypeScript
• Design and extend automated regression test suites for web applications and critical customer journeys
• Create reusable and maintainable test automation components
• Improve and extend the existing automation framework
• Analyse business requirements, user stories and acceptance criteria to define appropriate test coverage
• Perform functional, regression, integration and exploratory testing
• Validate end-to-end flows across multiple application components and integrated services
• Identify, document and track defects
• Support developers with root cause analysis
• Investigate failed automated test executions and distinguish application defects from automation issues
• Maintain and improve automated tests to increase stability, reliability and test coverage
• Support quality validation of new features before production deployment
• Collaborate with Developers, Product Owners, Business Analysts and other QA Engineers
• Participate in refinement, planning and other Agile/Scrum activities
• Contribute to the continuous improvement of QA processes, testing practices and automation strategy
• Support automated test execution as part of CI/CD pipelines

Requirements:

• Strong experience in QA Automation
• Hands-on experience with Playwright
• Good practical knowledge of JavaScript
• Experience creating and maintaining automated E2E tests
• Experience with web application testing
• Good understanding of functional, regression and integration testing
• Experience working with automated regression suites and test frameworks
• Understanding of CI/CD and automated test execution in pipelines
• Ability to analyse requirements and define test coverage
• Experience investigating test failures and identifying the root cause
• Experience working in an Agile/Scrum environment
• Good communication and collaboration skills
• English at a level sufficient for communication within an international team
• Tax residence in Ukraine required

Nice to Have:

• Experience working with large-scale or highly transactional web platforms
• Experience testing complex customer journeys
• Experience with integrated services and distributed application components
• Experience improving existing automation frameworks
• Experience with API testing
• Experience working with international teams and stakeholders

Team & Ways of Working

• Agile/Scrum methodology
• Close collaboration between QA, Development, Product and Business teams
• Strong focus on test automation and continuous improvement
• Automated testing integrated into CI/CD processes
• Focus on quality throughout the entire Software Development Lifecycle

We are the creators of a new fintech era!

Our mission is to change this world by making blockchain accessible to everyone in everyday life. WhiteBIT is a global team of over 1,200 professionals united by one mission — to shape the new world order in the Web3 era. Each of our employees is fully engaged in this transformative journey.

We work on our blockchain platform, providing maximum transparency and security for more than 8 million users worldwide. Our breakthrough solutions, incredible speed of adaptation to market challenges, and technological superiority are the strengths that take us beyond ordinary companies. Our official partners include the National Football Team of Ukraine, FC Barcelona, Lifecell, FACEIT and VISA.

Requirements:

We're looking for a Senior / Staff-level engineer with an open mind and a builder's instinct - someone who goes beyond executing tasks and is ready to own the High-Performance practice end-to-end: establish engineering processes, drive R&D, evaluate and champion new technologies, and lead their adoption in production.

The ideal candidate can bridge the gap between business requirements for low latency and high throughput and the realities of existing infrastructure - translating "we need to be faster" into an actionable technical roadmap. You bring a fresh perspective, know how to organize the work, and are equally comfortable optimizing a hardware parameter and presenting a strategy to stakeholders.

We expect 5+ years of hands-on experience as a DevOps/SRE/Systems Engineer in performance-critical environments - and the maturity to grow yourself and grow a team around you.

• Linux: Advanced administration and OS-level tuning — real-time OS configurations, cgroups, CPU isolation, memory management, and low-level network stack configuration.
• Hardware Internals: Deep understanding of CPU power and performance states (C/P-states), Hyper-Threading / SMT trade-offs, TX/RX ring configuration, and the full data path from NIC through PCIe to memory and CPU. Ability to reason about and tune each stage of that path under production load.
• Networking & TCP Internals: Deep knowledge of TCP/IP — congestion control, ACK behavior, buffer tuning, and protocol-level latency sources. Strong Linux networking fundamentals: low-latency NIC configuration, bypass networking technologies (DPDK, RDMA), and market connectivity (multicast feeds, co-location networks, VPNs).
• Performance Engineering: Practical experience profiling latency-sensitive systems; familiarity with tools such as perf, flamegraph, strace, tcpdump, eBPF, and hardware performance counters.
• Containerization: Deep knowledge of Docker and Kubernetes, including low-overhead deployment patterns and performance trade-offs of containerized workloads.
• IaC: Proven track record with Ansible, Terraform, and Helm in production environments.
• Monitoring: Hands-on experience with the Prometheus / Grafana stack; ability to build latency-aware dashboards and alerting (P99, jitter, throughput KPIs).
• Scripting: Solid scripting in Bash and Python; Golang is a strong plus given its role in systems tooling.
• CI/CD & Secret Management: Strong grasp of CI/CD pipelines with experience integrating performance validation stages; familiarity with Vault for secrets management.
• Security: Understanding of DevSecOps principles and Kubernetes security policies.

Key Performance Metrics You'll Work With

Latency Distribution - P99 / P99.9 across the tick-to-trade path, using hardware-level timestamps (NIC/PTP).

Jitter - variance between min/max latency, measured over large sample sets in live market conditions.

Throughput - messages per second (orders + cancels) under exchange burst scenarios.

System Reliability - сontinuous monitoring of uptime

Extra Credit / Big Pluses

• Hands-on experience with kernel-level optimization: syscall reduction, network stack bypass (DPDK, RDMA, Solarflare OpenOnload).
• Background in HFT, algorithmic trading, or other ultra-low-latency production environments.
• Experience with hardware timestamping, PTP/IEEE 1588, and precision time synchronization.
• Familiarity with colocation operations and exchange connectivity (cross-connects, proximity hosting).
• Proven SRE track record with formal SLO/error budget frameworks in latency-sensitive contexts.
• DevSecOps: vulnerability scanning, Zero Trust, RBAC, and secure delivery pipelines.
• Understanding of business processes in FinTech, crypto, or electronic trading.

Responsibilities:

• Low-Latency Infrastructure Ownership: Design, deploy, and continuously optimize infrastructure for latency-sensitive trading systems — market data handlers, order/deal gateways, and risk check engines. Own the full stack from bare metal to application delivery. Define and maintain a reference architecture for low-latency connectivity when onboarding new trading venues, including reproducible configuration baselines, validation procedures, and performance acceptance criteria — so every new venue goes live on a proven, optimized stack.
• Cloud & Hybrid Network Connectivity: Design, implement, and maintain complex low-latency network solutions for cloud provider interconnects - including cross-connects and Direct Connect / ExpressRoute links between cloud regions, hybrid on-premise/cloud topologies, and high-throughput inter-server fabrics. Ensure both latency minimization and fault tolerance at every layer: physical redundancy, failover routing, and path diversity across providers and regions.
• Hardware & OS Stack Tuning: Go deep on the full hardware and OS stack - CPU pinning, C/P-states, HT/SMT configuration, NUMA topology, IRQ affinity, TX/RX ring sizing, NIC offloading, and network stack bypass (DPDK/RDMA where applicable). Understand the complete data path from NIC through PCIe to memory and CPU - and optimize every hop.
• Infrastructure as Code (IaC): Automate provisioning and configuration of high-performance environments using Ansible, Terraform, and Helm - with performance reproducibility as a first-class requirement.
• Latency Profiling & Benchmarking: Systematically profile and debug latency hotspots across the full execution path. Establish and maintain SLA/SLO targets; track P99/P99.9 distributions, jitter, and throughput - not just averages.
• CI/CD for Performance: Build and maintain CI/CD pipelines that include automated latency regression testing, so performance degradations are caught before they hit production.
• Monitoring & Observability: Design and operate comprehensive latency monitoring and alerting systems (Prometheus, VictoriaMetrics, Grafana) - including hardware timestamping (NIC/PTP) and fine-grained performance telemetry.
• Colocation & Network Placement: Research, evaluate, and manage optimal server placements - colocations, cross-connects, proximity hosting. Work closely with network and infrastructure teams to minimize physical and logical distance to exchanges.
• High Availability & DRP: Design systems that maintain stability and reliability under peak load while continuously pushing latency lower - zero regressions, always.
• Cross-Team Collaboration: Work alongside algo developers, quant teams, and network engineers to ensure trading strategies execute with minimal infrastructure overhead.

Working terms

Immerse yourself in Crypto & Web3:

• Master cutting-edge technologies and become an expert in the most innovative industry.

Work with the Fintech of the Future:

• Develop your skills in digital finance and shape the global market.

Take Your Professionalism to the Next Level:

• Gain unique experience and be part of global transformations.

Drive Innovations:

• Influence the industry and contribute to groundbreaking solutions.

Join a Strong Team:

• Collaborate with top experts worldwide and grow alongside the best.

Work-Life Balance & Well-being:

• Modern equipment.
• Comfortable working conditions, and an inspiring environment to help you thrive.
• 24 calendar days of paid leave.
• Additional days off for national holidays.

We are looking for a proactive and client-oriented Client / Account Manager who will become the first point of contact for clients of our online banking/payment system and take full ownership of the onboarding journey — from initial inquiry to account activation.

This role is ideal for someone who is responsive, organized, and focused on delivering results.

Key Responsibilities:

Handle incoming client requests (account opening, payment solutions)
Consult clients and help them choose the most suitable solutions
Guide clients through the entire onboarding process
Communicate with banks, payment providers, and internal teams
Maintain CRM records and track application statuses
Work with LinkedIn: respond to inquiries and build relationships with potential clients
Convert leads into active clients and ensure successful onboarding

What We’re Looking For:

Experience in client-facing roles (account management, sales, onboarding)
Strong communication skills and a customer-oriented mindset
Ability to work efficiently in a fast-paced environment
Experience in fintech, banking, or payments is a strong advantage
Self-driven, responsible, and well-organized

Languages:

Ukrainian — fluent
English — Upper-Intermediate or higher

What We Offer:

Opportunity to work in an international payment system
Consistent flow of inbound leads + ability to influence your results
Dynamic, fast-moving environment with minimal bureaucracy
Competitive compensation

 

We are looking for a strong, strategic marketing professional who can go beyond simply managing social media and take full ownership of building the company’s market presence while driving high-value partnerships.

Responsibilities:

• Develop and manage a robust partnership network (B2B, fintech, crypto, payments)
• Proactively identify, approach, and establish new strategic partnerships
• Lead the company’s presence on LinkedIn and other relevant channels
• Design and execute comprehensive marketing strategies
• Create high-quality content (posts, case studies, brand positioning)
• Contribute to positioning the company as a strong and credible market player
• Communicate effectively with potential clients and partners

Requirements:

• Proven experience in marketing (preferably in fintech, crypto, or payments)
• Solid understanding of B2B sales and partnership models
• Strong communication and networking skills
• Hands-on experience managing LinkedIn at a professional level
• Self-driven, proactive, and results-oriented mindset

Languages:

• Ukrainian - fluent
• English - Upper-Intermediate or higher

What we offer:

• Opportunity to work in a fast-growing payment system
• Direct impact on business growth and strategy
• Dynamic environment with international projects
• Competitive compensation package 

Cloudfresh ⛅️ powers growth for 2,500+ clients in 70+ markets across Cloud, Cybersecurity, CRM, Collaboration, DevSecOps, and Data & AI. We partner with Google Cloud, Chrome Enterprise, Microsoft, HubSpot, Zendesk, Asana, Miro, GitLab, Okta, JumpCloud, Cloudflare and Wiz.

We hire for high performance and hold a high bar. We’re looking for a Talent Sourcer who wants to help us raise it. You’ll join our People & Performance team. Your job is to find, engage and nurture passive talent across IT, sales, cloud architecture and technical consulting. You’ll work closely with recruiters and hiring managers to map niche markets and build the pipelines our growth depends on.

What You’ll Do

• Source proactively. Find technical and non-technical talent through LinkedIn, Boolean search, communities, job platforms and other creative channels.
• Build pipelines. Map target markets across EMEA, generate qualified lead lists, and keep pipelines warm for recurring and critical roles.
• Engage candidates. Write personalized outreach that makes great people want to talk to us.
• Pre-qualify. Run short screening calls against each role’s scorecard to assess skills, motivation and culture fit.
• Activate referrals. Generate warm leads through our employee referral program and professional networks.
• Partner with hiring teams. Refine candidate personas with recruiters and hiring managers, adjust sourcing strategy, and share market intelligence.

• Keep data clean. Maintain accurate candidate records and talent pools in our ATS.

   

What You Bring

• 1+ years of talent sourcing or recruitment experience, in an agency or in-house, ideally in IT or SaaS
• Strong command of Boolean search, LinkedIn and creative sourcing channels
• Excellent written and verbal communication, with a track record of high outreach response rates
• Experience with modern ATS and CRM tools and recruiting workflows
• A results-driven, resourceful mindset and comfort working in a fast-paced, multi-market environment

• Professional working proficiency in English, Ukrainian. Polish are a strong plus.

   

Our Values

1. Customer First. Your success is our purpose.
2. Own the Outcome. We see it through.
3. Direct & Human. Honest, open and caring.
4. Raise the Bar. We never settle for “good enough”.

5. Generate the Real✨ Our DNA.

    

What We Offer

• Compensation: a competitive base salary, on an employment or contractor arrangement depending on your location
• Time off: 24 days of paid vacation and 14 paid sick days per year
• Flexibility: fully remote work with flexible hours and core hours aligned to EET
• People: work alongside A-players and seasoned cloud professionals

• Scope: hands-on exposure to international hiring across EMEA, with a focus on CEE

   

When applying to this position, you consent to the processing of your personal data by CLOUDFRESH for the purposes necessary to conduct the recruitment process, in accordance with Regulation (EU) 2016/679 of the European Parliament and of the Council of April 27, 2016 (GDPR).
 

Additionally, you agree that CLOUDFRESH may process your personal data for future recruitment processes.